查询词典 radon

To achieve better results,we make use of the discrete Radon transform and a set of discrete orthogonal Tchebichef polynomials to establish relationship between the projection moments and the image moments,and then estimate the unknown projections from the known projections using this relationship.

提出一种新的投影数据估计算法，利用离散Radon变换和Tchebichef正交多项式建立图像矩和投影矩之间的关系，并用这种关系从已知投影数据中估计未知投影数据，达到提高重建图像质量的目的。

This paper presents a new method to estimate unknown projections. To achieve better results, we make use of the discrete Radon transform and a set of discrete orthogonal Tchebichef polynomials to establish relationship between the projection moments and the image moments, and then estimate the unknown projections from the known projections using this relationship.

提出一种新的投影数据估计算法，利用离散Radon变换和Tchebichef正交多项式建立图像矩和投影矩之间的关系，并用这种关系从已知投影数据中估计未知投影数据，达到提高重建图像质量的目的。

As for updating the periodic table, element 118 would slot in just below radon in the column that contains inert gases.

至于元素周期表的升级，118号元素的位置就在氡列那些气体元素之后。

" Noble gas:Any of the six chemical elements that make up the rightmost group of the periodic table as usually arranged: helium, neon, argon , krypton, xenon, and radon."

稀有气体：通常排列在周期律中最右边一族的六种化学元素：氦、氖、氩、氪、氙和氡。

Objective To study toxic effect of inhaled radon and its progeny on blood and bone marrow cells of mice.

目的研究氡及其子体对小鼠造血系统的影响。

Objective To study the redox damage of lung and blood cells in rats inhaled radon and its progeny.

目的研究氡及其子体吸入对大鼠肺与血细胞的氧化应激损伤。

An example of parabolic Radon transform is demonstrated in this paper for filter approach, the energy leakage is a problem in traditional PRT.

对于滤波法给出了广泛应用的抛物Radon变换法的实例，指出了抛物Radon 变换法存在滤波时能量泄漏的问题。

Any of several radioactive gases that are isotopes of radon and are products of radioactive decay.

"几种氡的同位素的放射性气体，是放射性物质衰变的产物。"

Radon is a gas that comes from the radioactive decay of radium in rocks.

氡是来自岩石中镭辐射衰变而产生的一种气体。

Experts noted that the current urban living environment is the main source of radioactive hazards of indoor radon and radioelement content standard building materials.

专家指出，目前城市生活环境中主要放射性危害的来源有室内氡气及放射性元素含量超标的建筑材料等。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48